Remants of foundations, streets, and streetcar tracks inhabit the cliffs where a landslide occurred in 1929.

Non-profit time travel mart sells goods you would need for a trip through the fourth dimension.

This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.

One of the most enjoyable bits of history at Coney Island and “the most romantic ride in the world.”

A modern zoetrope on the New York City subway.

This innocent-looking townhome is actually a subway exit.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

Hidden in plain sight on a pair of Manhattan subway tunnels are a pair of public instruments that sing to each other.

During the holidays, a vintage subway train whisks New Yorkers back in time.

This centuries-old pueblo church houses the body of a Franciscan friar who is said to be a rare "incorruptible" corpse.

The most powerful laboratory radiation source in the world pulses with 1,000 times the electricity of a lightning bolt.

A museum devoted entirely to the rattlesnakes and snake-related art.

Crumbling remnants of what was once a booming town full of silver.

Wee (and not so wee) footprints that insects and reptiles of the Paleozoic Era left behind.

Seller of surplus nuclear research materials.

These ruins of a pre-Columbian cliff village are among the most beautiful and well preserved in New Mexico.

Twice a year, visitors can tour the desolate site that birthed the Atomic Age.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

The world's first commercial spaceport is a disappointment of cosmic proportions.

What was meant to be a temporary exhibit is now a permanent fixture at the St. Louis Zoo filled with beautiful birds.

Speak to a companion on the other side of the room loud and clear through this architectural anomaly.

What was once a presidential estate is now an exotic menagerie and home to the Budweiser Clydesdales.

Less a museum than a bizarre fantasy world created by artists and engineers.

A desert settlement founded and later abandoned by Hawaiian members of the Church of Jesus Christ of Latter-day Saints in Utah's Skull Valley.